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28444493495313 = 327451499896751
BaseRepresentation
bin1100111011110101111111…
…11011100011110000010001
310201201021012122210000202200
412131322333323203300101
512212013310313322223
6140255115300233413
75664022031302320
oct635727773436021
9121637178700680
1028444493495313
1190772730391a5
12323489739b869
1312b43c550563c
14704a13d620b7
15344d8e932a43
hex19debfee3c11

28444493495313 has 12 divisors (see below), whose sum is σ = 46955989262208. Its totient is φ = 16253996283000.

The previous prime is 28444493495303. The next prime is 28444493495317. The reversal of 28444493495313 is 31359439444482.

28444493495313 is a `hidden beast` number, since 2 + 8 + 4 + 4 + 4 + 4 + 93 + 4 + 9 + 531 + 3 = 666.

It is not a de Polignac number, because 28444493495313 - 216 = 28444493429777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 451499896751 = 28444493495313 / (2 + 8 + 4 + 4 + 4 + 4 + 9 + 3 + 4 + 9 + 5 + 3 + 1 + 3).

It is not an unprimeable number, because it can be changed into a prime (28444493495317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225749948313 + ... + 225749948438.

It is an arithmetic number, because the mean of its divisors is an integer number (3912999105184).

Almost surely, 228444493495313 is an apocalyptic number.

It is an amenable number.

28444493495313 is a deficient number, since it is larger than the sum of its proper divisors (18511495766895).

28444493495313 is a wasteful number, since it uses less digits than its factorization.

28444493495313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451499896764 (or 451499896761 counting only the distinct ones).

The product of its digits is 179159040, while the sum is 63.

The spelling of 28444493495313 in words is "twenty-eight trillion, four hundred forty-four billion, four hundred ninety-three million, four hundred ninety-five thousand, three hundred thirteen".

Divisors: 1 3 7 9 21 63 451499896751 1354499690253 3160499277257 4063499070759 9481497831771 28444493495313